Portable tower.



0. E. OSENBURG.

PORTABLE TOWER.

APPLICATION FILED AUG. 18, 1914.

1 1 19,631; Patented Dec. 1, 1914.

2 SHEETSSHEET 1.

'0. E. OSENBURG.

PORTABLE TOWER.

APPLICATION TILED AUG, 18,1914.

1,1 19,631.. Patented Dec. 1,1914.

2 SHEETS-SHEET 2.

M $5 3127 /iw. 4.2km

enemas a. osmvnnas, or saturating-infirmity PORTAB E retina;

To all whom it may com-em Be it known that-I, GHAfmas'E. YEOSEN-I BURG, a citizen of the United States, residing at Baltimore city, in the State of'Maryland,

have invented certain new and useful Improvements in Portable Towers, of which the following is a specification.

My invention relates to certain new and useful improvements in portable towers, and particularly to a type designed for use as a surf tower.

It has for its object the production of a tower especially adapted for use in the surf and for the saving of life and property.

lVith these ends in view my invention consists in details of construction and arrangement of parts hereinafter and more in detail described.

In order that those skilled in the art to which my invention appertains may know how to make and use my improved tower and fully appreciate its advantages, I will now proceed to describe the same referring by numerals to the accompanying drawings in which- H Figure 1 is a side elevation of one of my improved towers. Fig. 2 1s a front elevation of the same. Fig. 3 is a or plan view, and Fig. 4 is a perspective view of the skeleton frame.

Similar reference numerals indicate like parts in the several figures of the drawings.

1, 1, etc., are four tubular bars of steel constituting the body or base which 1s mounted upon four wheels 2, located at each.

corner, and which are journaled in caster frames 3 adapted to swivel in an obvious manner in corner castings 4, which also serve to support four corner tubes 5, which are securely fastened therein and converge and come together at their upper extremities and are securely fastened at thatpoint around a central tube 6 which is erected in a union joint 7 with two cross .tubes 8 connected by union joints 9 to the frame 1.

A tower house floor 10 is erected upon the four tubes 5 and is braced at its four corners by four tubes 11, crossing one another and secured at the intersection by a suitable four-way joint 12 and where they intersect and cross the four corner tubes 5, they are secured thereto by four-way castings 13. The floor is also supported midway of each side by four tubes extending to the center bar 6 and rigidly secured thereto about onethird way beneath the floor and in any suit- Specification or Lefi''rs tatat. Pat n'td n, 1, 191a, Ab nbanm llled August 18, 1914 2 as fit.- mesa.

able manner. i ,The tower hd'us floor "is thus securely and rigidly supported.

The two front wheels are provided with a tiller 14 extending froih "the caster frame-.3 and this tiller is provided with a sliding sleeve 15 adapted to be connected with a cross bar so that both tillers can be operated simultaneously by any suitable device, which preferably consists of two chains connected with the tillers as shown at Fig. 2, thence around pulley 16, thence around pulleys 17 thence up and through the floor and around a steering drum 18.

The rear wheels if deemed best may be keyed to a shaft rotatable in the corner bearing and this shaft is provided with a sprocket wheel and a drive chain connects the sprocket wheel with a sprocket pinionon a gasolene motor located upon the tower house floor. The tower house floor is still further braced by tubes 19 converging and fastened to the central tube 6 as shown at 20.

A J acobs ladder 21 is secured to the floor 10 and-may be hauled up or lowered as occasion mayidemand.

The tower house should also be equipped with a which, a'sliding gangway and such other tools or implements as may bedeemed desirable forrescue purposes, anda suitable protecting railing 22 will prevent accidental falling of operatives orth'e rescued.

I have not undertaken to give dimensions or proportions as they should be left to ex-' perience and to the particular uses to which it may be desired to put the tower.

In describing the frame work of the structure I have referred to tubes as being best adapted for the purpose as great strength with a minimum degree of weight can be thus attained, but it will be understood that I donot wish to be confined in this particular, the spirit of my invention residing in the production of a device which may be readily handled upon a beach and which will at the same time offer as little resistance to wind and water as possible, so

and desire to secure attached to comprising a base of members secured together inclined uprights 30 that their ends lie in the same horizontal plane with the intersection of said first named uprights, girders connecting the upper ends of said uprights and a floor attached thereto, a central upright connecting the junction of the diagonal members with the intersections of both sets of uprights and passing through said floor, braces connecting the upper end of said central upright with said girders.

In testimon whereof I aifix my signature in presence 0 two witnesses.

CHARLES E. OSENBURG. Witnesses:

HOWARD S. SnELns, H. F. DAHLMER. 

